Abstract:
:Although much evidence indicates that RT increases as a function of computational load in many cognitive tasks, quantification of changes in neural activity related to increasing demand of cognitive control has rarely been attempted. In this fMRI study, we used a majority function task to quantify the effect of computational load on brain activation, reflecting the mental processes instantiated by cognitive control under conditions of uncertainty. We found that the activation of the frontoparieto-cingulate system as well as the deactivation of the anticorrelated default mode network varied parametrically as a function of information uncertainty, estimated as entropy with an information theoretic model. The current findings suggest that activity changes in the dynamic networks of the brain (especially the frontoparieto-cingulate system) track with information uncertainty, rather than only conflict or other commonly proposed targets of cognitive control.
journal_name
J Cogn Neuroscijournal_title
Journal of cognitive neuroscienceauthors
Fan J,Van Dam NT,Gu X,Liu X,Wang H,Tang CY,Hof PRdoi
10.1162/jocn_a_00554subject
Has Abstractpub_date
2014-07-01 00:00:00pages
1490-506issue
7eissn
0898-929Xissn
1530-8898journal_volume
26pub_type
杂志文章abstract::Many aspects of perception and cognition are supported by activity in neural populations that are tuned to different stimulus features (e.g., orientation, spatial location, color). Goal-directed behavior, such as sustained attention, requires a mechanism for the selective prioritization of contextually appropriate rep...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00955
更新日期:2016-08-01 00:00:00
abstract::Forming a memory often entails the association of recent experience with present events. This recent experience is usually an information-rich and dynamic representation of the world around us. We here show that associating a static cue with a previously shown dynamic stimulus yields a detectable, dynamic representati...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01304
更新日期:2018-11-01 00:00:00
abstract::Prestimulus subsequent memory effects (preSMEs)-differences in neural activity elicited by a task cue at encoding that are predictive of later memory performance-are thought to reflect differential engagement of preparatory processes that benefit episodic memory encoding. We investigated age differences in preSMEs ind...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01249
更新日期:2018-06-01 00:00:00
abstract::We know that human neurocognitive systems rapidly and implicitly evaluate emotionally charged stimuli. But what about more everyday, frequently encountered kinds of objects, such as computer desktop icons and business logos? Do we rapidly and implicitly evaluate these more prosaic visual images, attitude objects that ...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2008.21180
更新日期:2010-01-01 00:00:00
abstract::In vision, perceptual features are processed in several regions distributed across the brain. Yet, the brain achieves a coherent perception of visual scenes and objects through integration of these features, which are encoded in spatially segregated brain areas. How the brain seamlessly achieves this accurate integrat...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01158
更新日期:2017-11-01 00:00:00
abstract::To sustain successful behavior in dynamic environments, active organisms must be able to learn from the consequences of their actions and predict action outcomes. One of the most important discoveries in systems neuroscience over the last 15 years has been about the key role of the neurotransmitter dopamine in mediati...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00503
更新日期:2014-03-01 00:00:00
abstract::Visual object recognition is performed effortlessly by humans notwithstanding the fact that it requires a series of complex computations, which are, as yet, not well understood. Here, we tested a novel account of the representations used for visual recognition and their neural correlates using fMRI. The rationale is b...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01420
更新日期:2019-09-01 00:00:00
abstract::Speech sounds are not always perceived in accordance with their acoustic-phonetic content. For example, an early and automatic process of perceptual repair, which ensures conformity of speech inputs to the listener's native language phonology, applies to individual input segments that do not exist in the native invent...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2011.21606
更新日期:2011-11-01 00:00:00
abstract::The behavioral inhibition system [Gray, J. A. The neuropsychology of anxiety: An enquiry into the functions of the septo-hippocampal system. Oxford: Oxford University Press, 1982] proposes that anxiety is associated with the processing of novel stimuli. We aimed to explore this relationship by recording auditory event...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2007.19.1.25
更新日期:2007-01-01 00:00:00
abstract::We employed a visual rhyming priming paradigm to characterize the development of brain systems important for phonological processing in reading. We studied 109 righthanded, native English speakers within eight age groups: 7-8, 9-10, 11-12, 13-14, 15-16, 17-18, 19-20, and 21-23. Participants decided whether two written...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/089892901750363190
更新日期:2001-07-01 00:00:00
abstract::Illusory motion can be generated by successively flashing a stationary visual stimulus in two spatial locations separated by several degrees of visual angle. In appropriate conditions, the apparent motion is indistinguishable from real motion: The observer experiences a luminous object traversing a continuous path fro...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2006.18.7.1174
更新日期:2006-07-01 00:00:00
abstract::After few seconds, a figure steadily presented in peripheral vision becomes perceptually filled-in by its background, as if it "disappeared". We report that directing attention to the color, shape, or location of a figure increased the probability of perceiving filling-in compared to unattended figures, without modify...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/089892906775990561
更新日期:2006-03-01 00:00:00
abstract::Dopamine (DA) has been implicated in modulating multiple cognitive control processes, including the robust maintenance of task sets and memoranda in the face of distractors (cognitive stability) and, conversely, the ability to switch task sets or update the contents of working memory when it is advantageous to do so (...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01518
更新日期:2020-05-01 00:00:00
abstract::This investigation combined behavioral and functional neuroimaging measures to explore whether perception of pain is modulated by the target's stigmatized status and whether the target bore responsibility for that stigma. During fMRI scanning, participants were exposed to a series of short video clips featuring age-ma...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2009.21266
更新日期:2010-05-01 00:00:00
abstract::People are often considered cognitive misers. When given a free choice between two tasks, people tend to choose tasks requiring less cognitive effort. Such demand avoidance (DA) is associated with cognitive control, but it is still not clear to what extent individual differences in cognitive control can account for va...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01566
更新日期:2020-08-01 00:00:00
abstract::Right hemisphere lesions often lead to severe disorders in spatial awareness and behavior, such as left hemispatial neglect. Neglect involves not only pathological biases in attention and exploration but also deficits in internal representations of space and spatial working memory. Here we designed a new paradigm to t...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2007.19.8.1388
更新日期:2007-08-01 00:00:00
abstract::When a stimulus is associated with a reward, it becomes prioritized, and the allocation of attention to that stimulus increases. For low-level features, such as color, this reward-based allocation of attention can manifest early in time and as a faster and stronger shift of attention to targets with that color, as ref...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00917
更新日期:2016-04-01 00:00:00
abstract::Although previous research has demonstrated that individuals are motivated to self-enhance, the neurocognitive mechanisms and temporal dynamics of self-enhancement are poorly understood. The current research examined whether self-enhancing motivations affect the perceptual processing of social feedback. Participants w...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00645
更新日期:2014-10-01 00:00:00
abstract::Alpha oscillations (8-14 Hz) are proposed to represent an active mechanism of functional inhibition of neuronal processing. Specifically, alpha oscillations are associated with pulses of inhibition repeating every ∼100 msec. Whether alpha phase, similar to alpha power, is under top-down control remains unclear. Moreov...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01280
更新日期:2018-08-01 00:00:00
abstract::Previous studies indicate that conscious face perception may be related to neural activity in a large time window around 170-800 msec after stimulus presentation, yet in the majority of these studies changes in conscious experience are confounded with changes in physical stimulation. Using multivariate classification ...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00353
更新日期:2013-06-01 00:00:00
abstract::Whole-brain functional magnetic resonance imaging (MRI) was used to examine the neural substrates of internally (endogenous) and externally (exogenous) induced covert shifts of attention. Thirteen normal subjects performed three orienting conditions: endogenous (location of peripheral target predicted by a central arr...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/089892999563283
更新日期:1999-03-01 00:00:00
abstract::Although investigations of memory and the dynamics of ERP components and neural oscillations as assessed through EEG have been well utilized, little research into the volitional nature of suppression over memory retrieval have used these methods. Oscillation analyses conducted on the Think/No-Think (TNT) task and voli...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00418
更新日期:2013-10-01 00:00:00
abstract::It remains a matter of controversy precisely what kind of neural mechanisms underlie functional asymmetries in speech processing. Whereas some studies support speech-specific circuits, others suggest that lateralization is dictated by relative computational demands of complex auditory signals in the spectral or time d...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/089892902320474526
更新日期:2002-10-01 00:00:00
abstract::Although the dominant approach posits that developmental dyslexia arises from deficits in systems that are exclusively linguistic in nature (i.e., phonological deficit theory), dyslexics show a variety of lower level deficits in sensory and attentional processing. Although their link to the reading disorder remains co...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.2009.21232
更新日期:2010-05-01 00:00:00
abstract::When observers are presented with hierarchical visual stimuli that contain incongruous coarse ("global") and fine ("local") pattern attributes, the global structure interferes with local pattern processing more than local structure interferes with global pattern processing. This effect is referred to as "global preced...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.1990.2.3.272
更新日期:1990-07-01 00:00:00
abstract::New theories of monitoring in language production, regardless of their mechanistic differences, all posit monitoring mechanisms that share general computational principles with action monitoring. This perspective, if accurate, would predict that many electrophysiological signatures of performance monitoring should be ...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01500
更新日期:2020-04-01 00:00:00
abstract::The perceptual organization of pitch is frequently described as helical, with a monotonic dimension of pitch height and a circular dimension of pitch chroma, accounting for the repeating structure of the octave. Although the neural representation of pitch height is widely studied, the way in which pitch chroma represe...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_01374
更新日期:2019-05-01 00:00:00
abstract::Several event-related potential (ERP) studies in second language (L2) processing have revealed a differential vulnerability of syntax-related ERP effects in contrast to purely semantic ERP effects. However, it is still debated to what extent a potential critical period for L2 acquisition, as opposed to the attained pr...
journal_title:Journal of cognitive neuroscience
pub_type: 临床试验,杂志文章
doi:10.1162/0898929055002463
更新日期:2005-08-01 00:00:00
abstract::Abstract Patients with frontal lobe lesions were adminstered tests of paired-associate learning in which cue and response words are manipulated to increase interference across two study lists. In one test of paired-associate learning (AB-AC test), cue words used in one list are repeated in a second list but are associ...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn.1995.7.2.144
更新日期:1995-04-01 00:00:00
abstract::Limitations in the performance of working memory (WM) tasks have been characterized in terms of the number of items retained (capacity) and in terms of the precision with which the information is retained. The neural mechanisms behind these limitations are still unclear. Here we used a biological constrained computati...
journal_title:Journal of cognitive neuroscience
pub_type: 杂志文章
doi:10.1162/jocn_a_00485
更新日期:2014-02-01 00:00:00